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General information, statement of compliance and basis of presentation (Details) - EUR (€) € in Thousands	6 Months Ended
	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Disclosure of classes of share capital
Cash and cash equivalents	€ 28,818	€ 49,737	€ 66,335	€ 75,283
Top of range
Disclosure of classes of share capital
Additional liquidity business obligations	10,000
Bottom of range
Disclosure of classes of share capital
Additional liquidity business obligations	€ 8,000

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- Definition

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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- Definition

Additional Liquidity Business Obligations

+ References

No definition available.

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